EP1129460A1 - Commutateur electrique - Google Patents

Commutateur electrique

Info

Publication number
EP1129460A1
EP1129460A1 EP99959237A EP99959237A EP1129460A1 EP 1129460 A1 EP1129460 A1 EP 1129460A1 EP 99959237 A EP99959237 A EP 99959237A EP 99959237 A EP99959237 A EP 99959237A EP 1129460 A1 EP1129460 A1 EP 1129460A1
Authority
EP
European Patent Office
Prior art keywords
housing
sleeve
electrical switch
switch according
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99959237A
Other languages
German (de)
English (en)
Other versions
EP1129460B1 (fr
Inventor
Klaus Rapp
Rainer Kizele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marquardt GmbH
Original Assignee
Marquardt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marquardt GmbH filed Critical Marquardt GmbH
Publication of EP1129460A1 publication Critical patent/EP1129460A1/fr
Application granted granted Critical
Publication of EP1129460B1 publication Critical patent/EP1129460B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H23/065—Casings hermetically closed by a diaphragm through which passes an actuating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H2009/048—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings using a sealing boot, e.g. the casing having separate elastic body surrounding the operating member and hermetically closing the opening for it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0081—Apparatus or processes specially adapted for the manufacture of electric switches using double shot moulding, e.g. for forming elastomeric sealing elements on form stable casing

Definitions

  • the invention relates to an electrical switch according to the preamble of claim 1.
  • Precautions must be taken so that the electrical switch is protected from harmful influences that impair its functionality.
  • harmful influences can be moisture, dust or the like.
  • Such switches have a housing in which the contact system is located, and an actuating element, which is arranged in an opening on the housing and partially protrudes from the housing, for switching action on the contact system.
  • a cap made of elastic material is arranged on the switch, which covers the part of the actuating member protruding from the housing and the opening in the housing. Because of its elasticity, the cap allows the actuator to move to switch the contact system.
  • a disadvantage of the known cap for protecting the switch from pollutants is that when the switch is actuated there is a relative movement between the cap and the actuating member. This can result in the cap being destroyed after a certain period of use, in particular the friction between the cap and the actuating element can increase Lead cracks in the cap so that the cap can no longer fulfill its protective function. Furthermore, it is disadvantageous that, due to the elasticity of the cap, it is difficult to visually recognize which switching state the actuating element is in.
  • an electrical switch with a cap which has a cover made of a hard material and a sleeve-like part made in the manner of a bellows made of a flexible material.
  • the lid of the cap is pot-shaped on the side facing away from the user and is arranged on the part of the actuating member protruding from the opening in such a way that the sleeve-like part is covered by the lid.
  • the actuator can be moved over the user-facing side of the cover to switch the contact system.
  • This design of the cap requires a large design for the switch.
  • the invention has for its object to further develop the electrical switch in such a way that protection against the ingress of pollutants into the switch is improved.
  • a small switch of this type is to be created.
  • a rigid plastic is expediently used as the material for the flat surface of the cover and for the sleeve-like part a flexible plastic, such as a thermoplastic elastomer, selected. It then makes sense to inject one end of the sleeve-like part onto the flat surface of the cover in the manner of a two-component part. The risk that pollutants penetrate at the particularly stressed fastening point between the cover and the sleeve-like part is very low.
  • the flat surface of the cover can be fastened to the actuating member on the side facing away from the user by means of latching and / or snap elements.
  • the other end of the sleeve-like part facing the housing can be slipped onto a flange surface of the housing in a simple manner or can also be fitted by means of a frame-like base.
  • a sealing lip can be arranged at the other end of the sleeve-like part or on the frame-like base. Furthermore, it is also possible to insert the switch into the mounting opening in such a way that part of the sleeve-like part on the cap simultaneously seals the mounting opening into the interior of the device. As a result, the penetration of pollutants into the device is prevented in a simple manner simply by using the switch, without additional sealing means being necessary for the device.
  • the switch according to the invention can also be designed so that it can be illuminated in a simple manner, but protection against the ingress of pollutants is nevertheless completely retained. To do this, it is sufficient to at least partially remove the flat surface of the cover from a visible spectral range to produce permeable plastic.
  • the illuminant can be arranged in a chamber of the actuating member, the chamber being covered by the flat surface of the cover. In order to increase the luminous efficiency in a switch which can be illuminated in this way, it is further appropriate to manufacture the sleeve-like part from a plastic which is essentially impervious to light in the visible spectral range.
  • the advantages achieved by the invention consist in particular in that improved protection against the ingress of pollutants into the interior of the switch housing, which can lead to impairments of the contact system located in the housing, is achieved.
  • the risk of damaging the cap during the service life of the switch is greatly reduced by the hard, flat surface of the cap of the cap which serves as the actuating surface.
  • simultaneous protection of the electrical device, in the wall of which the switch can be inserted in an assembly opening can also be achieved against the ingress of pollutants through the assembly opening.
  • improving protection for the switch significantly increases its life.
  • the assumed switching position of the actuating member is clearly visible in the switch according to the invention.
  • the light from the lighting is less attenuated than is the case with the previous elastic caps.
  • the switch according to the invention is easier to operate by the user due to the hard flat surface of the cover of the cap serving as the actuating surface.
  • the actuation feeling corresponds to that of a switch in which the user acts directly on the actuating member, so that the indefinable actuation feeling does not occur with a switch with the conventional elastic cap. Furthermore, damping of the switching noises generated when the actuating member is actuated is effected, so that the ergonomics for the user is improved in the switch according to the invention.
  • the switch according to the invention can be made more compact than a previously protected switch. Finally, it is clearly visible to the user that the switch is protected against the ingress of pollutants, even if the switch is installed in the wall of an electrical device. Nevertheless, the aesthetics for the switch are improved compared to the conventional protective caps.
  • FIG. 2 shows a section along the line 2-2 from FIG. 1,
  • FIG. 3 shows a longitudinal section through an electrical switch according to a further embodiment, 4 shows a section along FIGS. 4-4 from FIG. 3,
  • FIG. 5 shows the electrical switch designed in accordance with the embodiment according to FIG. 1, which is mounted in an electrical device, and
  • Fig. 6 to 12 various other designs for mounting the switch in an electrical device.
  • FIG. 1 An electrical switch 1 with a housing 2 can be seen in FIG. 1.
  • a contact system 3 to which electrical connections 4 protrude from the housing 2 on the underside.
  • an opening 5 At the top of the housing 2 there is an opening 5, in which an actuating member 6 partially protruding from the housing 2 is movably arranged.
  • a switching action on the contact system 3 is made possible by means of the actuating member 6, which the user actuates manually.
  • this is a rocker switch, the actuator 6 of which is designed as a rocker.
  • the rocker switch can be illuminated, for which purpose a lighting element 7 is arranged in a chamber 8 of the rocker.
  • An unlit rocker switch is shown in FIG. 3.
  • the switch can also be used as a pressure switch with an actuator designed as a plunger or the like. be trained.
  • a cap 9 is arranged on the top of the housing 2.
  • the cap 9 covers the part of the actuating member 6 protruding from the housing 2 and the opening 5 in the housing 2. Furthermore, the cap 9 is designed in such a way that it detects the movement of the Actuator 6 for switching the contact system 3 allowed.
  • the cap 9 has a flat cover, which is essentially designed in the manner of a flat surface 10, and a sleeve-like part 11.
  • the flat surface 10 of the cover and the housing 2 also exist made of a hard material.
  • a rigid plastic for example polycarbonate, is suitable as the material.
  • the flat surface 10 can be rectangular, square, circular, oval or the like. If the switch 1 can be illuminated, at least part of the flat surface 10 of the cover is at least partially transparent to light in the visible spectral range.
  • the sleeve-like part 11 is designed in the manner of a bellows and consists of a flexible material.
  • An elastic plastic for example a thermoplastic elastomer, is suitable as the material.
  • the sleeve-like part 11 can also consist of rubber or the like.
  • the sleeve-like part 11 is fastened at one end along a circumferential edge to the side of the flat surface 10 of the cover facing away from the user.
  • the other end of the sleeve-like part 11 projects beyond the surface 10 of the cover laterally. This protruding other end of the sleeve-like part 11 is arranged on a region 12 of the housing 2 surrounding the opening 5.
  • the flat surface 10 of the lid is arranged on the part of the actuating member 6 protruding from the opening 5 such that the actuating member 6 can be moved over the user-facing side of the flat surface 10 of the lid. Since the flat surface 10 consists of a hard material, preferably a rigid plastic, the user has the same switching feeling as if the actuating member 6 were actuated directly without a cap 9 becomes. On the other hand, the cap 9 does not hinder the movement of the actuating member 6 when switching due to the configuration of the sleeve-like part 11 in the manner of a bellows. Nevertheless, the cap 9 ensures reliable protection against the ingress of pollutants at the opening 5 into the interior of the housing 2.
  • the flat surface 10 of the cover can be fastened to the actuating member 6 by means of latching and / or snap hooks 13.
  • the latching and / or snap hooks 13 are located on the side of the flat surface 10 facing away from the user and can be designed to protrude from the flat surface 10.
  • the cap 9 is placed over the actuator 6 and the flat surface 10 is then clipped onto the actuator 6.
  • other types of fastening of the flat surface 10 on the actuating member 6 are also possible, for example by means of lugs, locking lugs or locking surfaces.
  • 3 shows a further type of fastening by means of pins 14, which engage in form-fitting and / or non-positively in corresponding receptacles on the actuating member 6.
  • the other end of the sleeve-like part 11 facing the housing 2 is designed as an elastic receptacle 16 corresponding to the flange surface 15. Because of this configuration, the receptacle 16 can be slipped over the flange surface 15 for the arrangement and fastening of the sleeve-like part 11 on the housing 2.
  • the other end of the sleeve-like part 11 facing the housing 2 is on a frame-like base 17 made of a hard material, such as a rigid plastic, for example polycarbonate or the like.
  • the frame-like base 17 is in turn designed as a receptacle corresponding to the flange surface 15, so that the frame-like base 17 can be plugged onto the flange surface 15 in order to arrange the sleeve-like part 11 on the housing 2.
  • the base 17 in FIG. 4 has locking lugs 18, with the aid of which the base 17 can be clipped onto the flange surface 15.
  • the one end of the sleeve-like part 11 is molded onto the flat surface 10 of the cover for attachment in the manner of a two-component part, specifically along the circumferential edge on the side of the flat surface 10 facing away from the user. A secure seal of the cap 9 is thereby achieved and the manufacture of the cap 9 itself is also simplified.
  • the other end of the sleeve-like part 11 facing the housing 2 can also be molded onto the base 17 in the manner of a two-component part.
  • the formation as a two-component part is particularly useful when the flat surface 10 and / or the base 17 are made of a hard thermoplastic and the sleeve-like part 11 is made of a thermoplastic elastomer.
  • the switch 1 can, for example, be arranged in a device wall 19 of an electrical device, as is shown schematically in FIG. 5.
  • a device wall 19 of an electrical device there is an assembly opening 20 in the device wall 19, into which the switch 1 with its housing 2 can be inserted. It is then appropriate to simultaneously seal the assembly opening 20 with the cap 9 in such a way that the ingress of harmful substances into the electrical device is effectively prevented.
  • a sealing lip 21 on the receptacle 16 of the sleeve-like part 11 may be attached, as can be seen in FIGS. 1 and 2 for the first embodiment.
  • a sealing lip 22 can be located on the base 17, which is shown in more detail in FIGS. 3 and 4. If the switch 1 together with the cap 9 is inserted into the mounting opening 20, the sealing lip 21, 22 lies against the device wall 19 in a sealing manner, as is clear from FIG. 5.
  • the other end of the sleeve-like part 11 projects laterally from the surface 10 of the cover in such a way that the sleeve-like part 11 is not completely covered by the flat surface 10 of the cover, so that even after the switch 1 has been installed in the Electrical device the sleeve-like part 11 is at least partially visible to the user.
  • the switch 1 is inserted into the mounting opening 20 in the device wall 19 in such a way that the flange surface 15 of the housing 2 is sealed on the outside 23 by means of a part of the cap 9 and in particular the receptacle 16 of the sleeve-like part 11 Device wall 19 is present.
  • the switch 1 is inserted into the mounting opening 20 such that the flange surface 15 of the housing 2 is located essentially within the mounting opening 20.
  • the flange surface 15 is essentially flush with the device wall 19.
  • the flange surface 15 projects slightly beyond the outside 23 of the device wall 19.
  • the flange surface 15 is arranged slightly recessed relative to the outside 23 of the device wall 19.
  • the device wall 19 is designed as a double wall, so that the flange surface 15 engages in the space 24 of the device wall 19.
  • the switch 1 is in the Installation opening 20 inserted that the flange surface 15 of the housing 2 bears against the inside 25 of the device wall 19.
  • the latter arrangement is particularly preferred, since then the actuating member 6 together with the cap 9 is located essentially flush in the device wall 19, which permits particularly ergonomic actuation of the actuating member 6 for the user.
  • 9, 10, 11 and 12 differently designed locking arms on the housing 2 for fastening the switch 1 in the mounting opening 20 are shown.
  • the invention is not restricted to the exemplary embodiments described and illustrated. Rather, it also includes all professional training within the scope of the inventive concept. Thus, the invention can be used not only on the rocker switches described, but also, as already mentioned, on pressure switches or the like.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Saccharide Compounds (AREA)
  • Glass Compositions (AREA)
  • Tumbler Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP99959237A 1998-11-09 1999-11-09 Commutateur electrique Expired - Lifetime EP1129460B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19851514 1998-11-09
DE19851514 1998-11-09
PCT/DE1999/003560 WO2000028562A1 (fr) 1998-11-09 1999-11-09 Commutateur electrique

Publications (2)

Publication Number Publication Date
EP1129460A1 true EP1129460A1 (fr) 2001-09-05
EP1129460B1 EP1129460B1 (fr) 2002-05-15

Family

ID=7887119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99959237A Expired - Lifetime EP1129460B1 (fr) 1998-11-09 1999-11-09 Commutateur electrique

Country Status (8)

Country Link
US (1) US6573466B1 (fr)
EP (1) EP1129460B1 (fr)
JP (1) JP4397529B2 (fr)
CN (1) CN1123025C (fr)
AT (1) ATE217730T1 (fr)
DE (2) DE19953046A1 (fr)
ES (1) ES2177335T3 (fr)
WO (1) WO2000028562A1 (fr)

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CN1328738C (zh) * 2002-09-10 2007-07-25 西门子公司 带有操纵板的开关
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US7439832B1 (en) * 2004-03-16 2008-10-21 Pass & Seymour, Inc. Electrical wiring device switch assembly and combination device with circuit protection component
JP2006100084A (ja) * 2004-09-29 2006-04-13 Matsushita Electric Ind Co Ltd 多方向操作装置
RU2368029C2 (ru) * 2004-11-02 2009-09-20 Стоунридж Контрол Дивайсиз, Инк. Герметизированный узел переключателя
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US8905847B2 (en) * 2012-08-24 2014-12-09 Igt Input device with membrane to impede entrance of foreign contaminates into an electronic gaming machine
CA2815936A1 (fr) 2013-03-14 2014-09-14 Stryker Corporation Enceinte de camera inviolable
CN105097310A (zh) * 2014-05-12 2015-11-25 钟志刚 一种覆盖式开关
CN104269298A (zh) * 2014-09-30 2015-01-07 绵阳雷迪创微电子科技有限公司 防水防尘型开关
GB2538560B (en) 2015-05-22 2019-05-29 Dyson Technology Ltd A hand held appliance
EP3166121B1 (fr) * 2015-11-03 2019-03-27 C&K Components SAS Interrupteur à bouton-poussoir électrique
US11121498B2 (en) 2016-06-01 2021-09-14 Hubbell Incorporated Water resistant electrical devices
WO2017210313A1 (fr) * 2016-06-01 2017-12-07 Hubbell Incorporated Dispositifs électriques résistants à l'eau
CN109074975B (zh) * 2016-06-30 2020-01-07 惠普发展公司，有限责任合伙企业 光阻挡器
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Also Published As

Publication number Publication date
JP2002529897A (ja) 2002-09-10
CN1123025C (zh) 2003-10-01
US6573466B1 (en) 2003-06-03
DE19953046A1 (de) 2000-05-11
ES2177335T3 (es) 2002-12-01
ATE217730T1 (de) 2002-06-15
CN1304538A (zh) 2001-07-18
WO2000028562A1 (fr) 2000-05-18
JP4397529B2 (ja) 2010-01-13
DE59901473D1 (de) 2002-06-20
EP1129460B1 (fr) 2002-05-15

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